Department of Homeland Security NAICS 237110 contractors in Washington

Water and Sewer Line and Related Structures Construction. Contractors in this state-buyer-industry overlap.

Washington + Department of Homeland Security

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$63,875,165

Visible recipients tied to Department of Homeland Security, Washington, and NAICS 237110

Manson Construction CO

Seattle, WA

Seattle, WA | 86 awards | Top agency Department of Defense | NAICS 237990

Tunista Construction LLC

Tacoma, WA

Tacoma, WA | 5 awards | Top agency Department of Defense | NAICS 236220

Doyon Technical Services, LLC

Federal Way, WA

Federal Way, WA | 20 awards | Top agency Department of Defense | NAICS 236220

Doyon Project Services, LLC

Federal Way, WA

Federal Way, WA | 20 awards | Top agency Department of Defense | NAICS 236220

Sealaska Construction Solutions, LLC

Seattle, WA

Seattle, WA | 20 awards | Top agency Department of Defense | NAICS 237110

State page

Loading state-level contractor and award paths